Audi A8 (2020) is 667 mm (26.26 inch) longer, 271 mm (10.67 inch) higher and has 361 liters (12.75 ft3) bigger cargo space than McLaren 650S Coupe (2015).
McLaren 650S Coupe (2015) is 148 mm (5.83 inch) wider and 865 kg (1,907 lbs) lighter than Audi A8 (2020).